Drill-press



(No Mudel.)

R. R. FULLER.

DRILL PRESS.

Patented July 28, 1891.

WIT-N 55555 I E?llllllllllllllllllllllllIIHNHHM UNITED STATES PATENTOEEiCE,

HIRAM H. FULLER, OF WEADVILLE, PENNSYLVANIA.

DRILL-PRESS.

SPECIFICATION forming part of Letters Patent No. 456,560, dated July 28,1891.

Application iiled January 26, 1891i` Serial No. 379.100. (No model.)

To all whom it may concern:

Be it known that I, HIRAM Il. FULLER, a citizen of the United States,residing at Meadville, in the county of Crawford and State ofPennsylvania, have invented certain new and useful Improvements inDrill-Presses; and

' I dohereby declare the following;r to be afull,

sys

clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to drill-presses; and it consists in certainimprovementsin the construction of the same, as will be hereinafterfully set forth, and pointed out in the claims.

rlhe invention is illustrated in the accompanying drawings as follows:

Figure l is a side elevation view of a drillpress having my improvementsembodied therein. Fig. 2 is alike view of a benchdrillpress in which isshown an alternative application of my invention, which is equallyapplicable to the type of machine shown in Fig. l.

The object of my invention is to provide a drill-press with both aleverand a screw feeding mechanism, so that the operator can use either,as the Work allows.

Vhen the drill is small or the material to be drilled is soft, theoperator will use the lever-feed, and when the drill is large or thematerial to be drilled is hard he Will use the screw-feed. When thusequipped, the Inachine Will be better adapted to general shop- Work, andone machine will be often suflicient Where without such equipment twomachines Would be required.

The construction and operation of my device is as follows:

A is the main post or column of the machine.

B B are the cross-arms. v

C is the drill-spindle.

D D D2 DS niark the operating-gearing.

The foregoing parts are substantially the same as in many types ofdrill-presses commonlyin use.

His a pivoted fulcrum-post, on which is pivoted a drill-feeding lever E.

C is a swivel-block on the drill-spindle C, which is pivoted to thelever E at c. By raising or pulling down on the lever E the drillspindlewill be raised or lowered and the drill withdrawn or fed to its work.

In the construction shown in Fig. l 'thereis a nut G', with a hand-wheelG, seated loosely in a cavity in the upper end of thecolumn A, and inthis nut is a screw-post F, jointed atf and pivoted to the lever E at fon the opposite side of the fulcrum-post Il from the drillspindle. Thenut G is free to revolve or slide up and down in its seat in the post A,and it is made large, so as to be of suflicient weight to fully ornearly counterbalance the drill-spindle, as desired. By revolving thehand-wheel G, which is fixed to the nut G' and carries it with it, thescrew-post F will be raised or lowered, according to the direction inwhich the wheel is turned, and this will move the drill-spindle up ordown, as the case may be.

Then vthe operator desires to feed the drill by the lever E, he graspsthe handle on the end of the lever and moves it to suit his work, thescrew F, wheel G, and nut G acting as a counter-balance and movingvertically as the lever is moved; but if the operator de sires to feedthe drill by the screw he grasps the hand-wheel and turns it as the workrequires. l

In the construction shown in Fig. 2 the object of the modiiication is tobring the screwfeed into a more accessible position nearer the pointwhere the operator naturally stands. In this construction the cross-armB is extended by the .addition B2, and the nut G is seated in the end ofthis addition, and the screw Ftakes hold of the lever E near its handle.In this position the screw and nut lose their office of counterbalaneingAthe spindle, and a weight IV is applied to the lever beyond the fulcruml-l. When the screw is to be used in this construction to feed thedrill, it is necessary to hold the nut inits bearing against verticalaction, and to this end I provide a set-screw g, which when appliedenters a groove in the nut, as shown.

Then the operator desires to feed the drill by the lever alone, heloosens the set-screw g, and the nut and screw are free to movevertically in their bearings as the lever is moved up or down; but whenthe operator desires to use the screw to feed the drill he enters theVset-screw g in the groove in the nut G and operates the hand-wheel G.

It will be seen that in either construction the operator can at any timeand Without delay use either the lever E or the screw-Wheel Gto feed thedrill, andthat the machine is at all times adapted for light or heavywork.

NVhat I claim as new is- 1. In a drill-press, the Combination, with thedrill-spindle, of a. hand-lever E for Inoving the same, and anut-and-serew device attached tosaid levernndadapted,Substantially asshown, to move seid lever when desired.

2. In fr drill-press, the Combination, with the drill-spindle, of Lhand-lever for moving the same, and L nnt-and-serew device attached tosaid lever and adapted, substantially as shown, to move said lever whenoperated or to move with seid lever when it is operated by hand.

3. In a drill-press,` the Combination, with the drill-Spindle, of a,hand-lever for moving the same,and a nnt-and-serew device attached toseid lever and adapted, substantially as shown, to move said lever whenoperated or to move With said lever when it is operated and toeounterbalanee the Weight of the drillspindle.

l. In a drill-press, the combination, with thedrill-spindle,ofthehand-lever E,the screw F, pivoted to said lever, and the hand-wheel Gand nut G on said screw, said nut and screw being adapted, es shown, tooperate said hand-lever when desired and when not to move with saidlever when it is operated by hand.

5. In a, drill-press, the combination, with the drill-spindle, of thelever E, the fnlerumpost H, the screw F, and nut G', said parts beingarranged to operate together, substantially as and for the purposesmentioned.

In testimony whereof I affix mysignature in presence of two witnesses.

HIRAM II. FULLER.

,Vitnesses: JNO. K. HALLooK, WM. P. HAYES.

